Croozer Designs Child Bicycle Trailer and Jogger 3-in-1 single-child carrier with stroller, bicycle trailer and jogger functionality support via the included accessories Patented ultra-quick folding system for easy assembly and storage Attaches securely to any adult bike via hitch arm and two-part axle attachment Cockpit is safe and comfortable, with front and rear bumpers, padded five-point harnesses, padded headrests, and low center of gravity, and extra large rear storage space Weather cover keeps out rain and sun, and mesh sides ensure ventilation